Improvement in steam-generators



JONATHAN M. CLARK, 0F NEW YORK, N. Y.

LettersuPatmo-t No. 101,434, dated .Ap-ril 5, 1870.

IMPROVEMENT IN STEAM-GENERATORS.

The Schedule referred to in these Letters Patent and making part of thelame.

-...Opn-

l'o all Iwhom it may concern Be it knownthat- I, JONATHAN M. CLARK, ofthe city, county, and State of New York,l have invented certain new anduseful Improvements in Steam- Generators, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawing through `letters of reference marked thereon,forming part of this specification, and in which- Figure 1 represents asectional view taken transversely through the heads orconnecting-chambers of a part of the apparatus.

Figure 2 is a vertical longitudinal section', taken through the centerof fig. 1.

The same letters indicate like parts in both figures.

'.lhe object of this invention is to economize space, bring thewater-pipes more closely together, and eect a detention of 'the productsof combustion, by giving them a tortuous passage between the furnace andtheir exit; also, in a novel means of forming the connection by whichthe contiguous' heads are united, and which forni, also, passages forcirculation of the V'water or'otherfluid through the entire range ofpipesy in every direction, laterally, angularly, and vertically.

Referring to the drawing- A A represent a series of pipes, arrangedparallel to each other, and side by side horizontally, but in each rangeupwardly the several pipes are intermediate of those of theadjacent'range, whereby the products of combustion from the furnacebeneath are de- -ected or caused to take a zigzag course between saidThis is effected by using hexagonal hollow heads B for forming theconnection between the several waterpipes, and which also form the endwalls of the furnace. The lower and upper range of these heads may,however, be made rectangular at their lower and the manner set forth.

upper sides, respectively, and the angular spaces at the sides of thetiers be filled by solid block s of ironstone or tire-brick, to completethe rectangular form of each end wall.

These hexagonal heads B are connected by'tubular nipples C, formed witha flanged head at one end and an external screw-thread around the other,and are eitherprovided with a nick to apply a screw-driver formed tool,or made angular internally forthe inser-l tion of a wrench, by which,when they'are passed through the side of one head, they may be screwedinto the adjacent one, to effect their connection, and, being tubular,to afford water or steam communica- .tion between the said-heads- By theuse of. hollow heads of hexagonal form a circulation laterally,diagonally, and vertically is, effected, and the pipes brought in theclosest possible proximity to each other, thus economizing space, andYby the tortuous passage through which the products of combustion have topass, absorbing the largest possible proportion of caloric evolved.

Having thus described my invention,

What is claimed, as new and desired to be secured by Letters Pate-nt,is-

l. The hexagonal hollow heads B, in combination with the pipes A,forming a zigzag arrangement, and having lateral and diagonal tubularconnections, for the circulation of water and steam therethrough,substantially as specified.

2. The tubular screw-nipples C, constructed with a ange or collar on oneend for uniting the heads'B in JONATHAN IVI. CLARK.

Witnesses:

SYDNEY E SMlTH, Gao. E. HALE.

